Fortigate failed connection attempts. Maybe the source is sending garbage data instead of correct DNS queries? Enable packet capture in the policy that processes this, and then once it happens again, check the pcap for the matching session. We've had over 6K failed login to our VPN so far in August. I called Fortinet support, and one of the engineer logged in to the firewall remotely and ran some diagnostics, he is saying that the firewall is sending a request but not receiving a response, and advised to check with the ISP. Information Enable or disable logging of failed connection attempts to the FortiGate unit that use TCP/IP ports other than the TCP/IP ports configured for management access (443 for https, 22 for ssh, 23 for telnet, and 80 for HTTP by default). It might also be tied to the session table timer. . Make sure you have 2-factor setup on your VPN and you keep the code on your endpoint (fortigate/vpn server/whatever) patched. Actualy Google wasn't working. Sep 20, 2017 · I haven't found the official definition, but from what I've concluded is this means any traffic that was allowed through the firewall, but did not form a complete connection. Solution To enable logging, use the following command: config log setting set local-in-deny-unicast Mar 8, 2016 · So, after few days of normal traffic, suddenly connection to some Google servers was blocked and I saw lots of "Failed connection attempts" messages. Feb 26, 2025 · The Fortinet Security Fabric brings together the concepts of convergence and consolidation to provide comprehensive cybersecurity protection for all users, devices, and applications and across all network edges. Other sites and traffic was working just fine, only the connection to those servers was blocked. Failed connection would typically mean that the server-side did not respond. For example, if a device on the network tries to open a tcp session with another device through the firewall, but the receiving device isn't listening on the given port You will see failed connections and login attempts when you have anything open to the world. wqlvc cmmbx bqjdnav rrfzu vevm ciikc dsqbjgg mku hccuq erbri